.container {
  display: flex;
}

.system {
  width: 70%;
  height: 100vh;
  background-color: var(--gray-200);
}

.chat {
  width: 30%;
  background-color: var(--gray-300);
  position: relative;
}

.chat__message {
}

.chat__usertext {
  width: 100%;
}

.chat__usertext textarea {
  position: absolute;
  bottom: 0.6em;
  width: calc(100% - 1.6em);
  height: 8em;
  border: 1px solid var(--gray-400);
  border-radius: 0.2em;
  outline: none;
  background-color: var(--white);
  color: var(--gray-900);
  padding: 0.8em;
  margin: 0 0.8em;
  font-size: 1rem;
  resize: none;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.chat__usertext textarea:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 2px var(--info-color);
}

.chat__usertext textarea::placeholder {
  color: var(--gray-500);
  font-style: italic;
}

.chat__usertext textarea:hover:not(:focus) {
  border-color: var(--gray-500);
}

.chat__usertext a {
  position: absolute;
  bottom: 1.3em;
  right: 1.5em;
  text-indent: 5em;
  white-space: nowrap;
  overflow: hidden;
  width: 1.5em;
  text-decoration: none;
}
.chat__usertext a::after {
  display: block;
  content: "\2191";
  text-indent: 0;
  width: 1.4em;
  height: 1.4em;
  background-color: var(--primary-color);
  border-radius: 1.4em;
  color: var(--white);
  text-align: center;
}
